http://www.sil.org/pacific/png/pubs/0000467/Phonology%20and%20Grammar%20of%20Nankina.pdf (Verlagsversion)
Spaulding, C., & Spaulding, P. (1994). Phonology and grammar of Nankina (N.A.). Ukarumpa via Lae, Papua New Guinea: Summer Institute of Linguistics.